Application Performance Snapshot User Guide for Linux* OS

Download PDF
ID 772048
Date 12/16/2022
Public

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents
Document Table of Contents x
Application Performance Snapshot User's Guide for Linux* OS
Application Performance Snapshot User's Guide for Linux* OS x
Introducing Application Performance Snapshot Analyzing Applications Detailed Analyses Metrics Reference Known Issues and Limitations Notices and Disclaimers
Analyzing Applications x
Controlling Amount of Collected Data
Detailed Analyses x
Common Analyses MPI Analyses Outlier Detection
MPI Analyses x
Analysis Charts Filtering Capabilities Region Control with MPI_Pcontrol Creating Configuration File for Intel® Trace Collector
Analysis Charts x
Function Summary for All Ranks MPI Time per Rank Message Sizes Summary for All Ranks Data Transfers per Rank-to-Rank Communication Data Transfers per Rank Data Transfers per Function Node-to-Node Data Transfers Communicator List Detailed Information for Specific Ranks
Filtering Capabilities x
Filtering by Key Metric Filtering by Number of Lines Using Filter Combinations
Application Performance Snapshot User's Guide for Linux* OS

Creating Configuration File for Intel® Trace Collector

Application Performance Snapshot (APS) provides integration with Intel® Trace Analyzer and Collector in the form of Intel® Trace Collector configuration files to reduce tracing overhead.

APS allows you to create a configuration file that enables tracing of only most used MPI functions in the application. You can select top functions sorted by time, imbalance or volume values, and change the number of functions selected.

To create a configuration file, run aps-report with the -j (--itac_config) option. Use time, imbalance or volume as an option argument to pick top functions by the respective value. You can limit the number of functions selected using the -N option. By default, four functions are selected. For example: 

				$ aps-report ./aps_result_<postfix> -j time -N 5

A configuration file created with the command line above may look as follows: 

				ACTIVITY MPI OFF
				SYMBOL MPI_Init ON
				SYMBOL MPI_Recv ON
				SYMBOL MPI_Send ON
				SYMBOL MPI_Barrier ON
				SYMBOL MPI_Bcast ON
				ACTIVITY Application 0
Parent topic: MPI Analyses
Level Two Title